main()//唐子豪
{
    int i, j, t,k,s;
    printf("Following are palindrome primes not greater than 1000:\n");
    for(i=0;i<=9;i++)
        for(j=0;j<=9;j++)
            for(k=0;k<=9;k++){
                s=i*100+j*10+k;
                t=k*100+j*10+k;
                if(i==0&&j==0)t/=100;
                else if(i==0)t/=10;
                if(s>10&&s==t&&a(s))
                    printf("%d\t",s);
            }
}
a(n)
    int n;
{
    int i;
    for(i=2;i<=(n-1)/2;i++)
        if(n%i==0) return(0);
    return(1);
    
}